// Copyright (c) 2011-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef BITCOIN_QT_WALLETVIEW_H
#define BITCOIN_QT_WALLETVIEW_H

#include <consensus/amount.h>

#include <QStackedWidget>

class ClientModel;
class OverviewPage;
class PlatformStyle;
class ReceiveCoinsDialog;
class SendCoinsDialog;
class SendCoinsRecipient;
class TransactionView;
class WalletModel;
class AddressBookPage;

QT_BEGIN_NAMESPACE
class QModelIndex;
class QProgressDialog;
QT_END_NAMESPACE

/**
 * WalletView class. This class represents the view to a single wallet.
 * It was added to support multiple wallet functionality. Each wallet gets its
 * own WalletView instance.
 * It communicates with both the client and the wallet models to give the user
 * an up-to-date view of the current core state.
 */
class WalletView : public QStackedWidget {
    Q_OBJECT

public:
    WalletView(const PlatformStyle *platformStyle, WalletModel *walletModel,
               QWidget *parent);
    ~WalletView();

    /**
     * Set the client model.
     * The client model represents the part of the core that communicates with
     * the P2P network, and is wallet-agnostic.
     */
    void setClientModel(ClientModel *clientModel);
    WalletModel *getWalletModel() { return walletModel; }
    /**
     * Set the wallet model.
     * The wallet model represents a bitcoin wallet, and offers access to the
     * list of transactions, address book and sending functionality.
     */
    void setWalletModel(WalletModel *walletModel);

    bool handlePaymentRequest(const SendCoinsRecipient &recipient);

    void showOutOfSyncWarning(bool fShow);

private:
    ClientModel *clientModel;
    WalletModel *walletModel;

    OverviewPage *overviewPage;
    QWidget *transactionsPage;
    ReceiveCoinsDialog *receiveCoinsPage;
    SendCoinsDialog *sendCoinsPage;
    AddressBookPage *usedSendingAddressesPage;
    AddressBookPage *usedReceivingAddressesPage;

    TransactionView *transactionView;

    QProgressDialog *progressDialog{nullptr};
    const PlatformStyle *platformStyle;

public Q_SLOTS:
    /** Switch to overview (home) page */
    void gotoOverviewPage();
    /** Switch to history (transactions) page */
    void gotoHistoryPage();
    /** Switch to receive coins page */
    void gotoReceiveCoinsPage();
    /** Switch to send coins page */
    void gotoSendCoinsPage(QString addr = "");

    /** Show Sign/Verify Message dialog and switch to sign message tab */
    void gotoSignMessageTab(QString addr = "");
    /** Show Sign/Verify Message dialog and switch to verify message tab */
    void gotoVerifyMessageTab(QString addr = "");
    /** Load Partially Signed Bitcoin Transaction */
    void gotoLoadPSBT();

    /**
     * Show incoming transaction notification for new transactions.
     *
     * The new items are those between start and end inclusive, under the given
     * parent item.
     */
    void processNewTransaction(const QModelIndex &parent, int start, int end);
    /** Encrypt the wallet */
    void encryptWallet();
    /** Backup the wallet */
    void backupWallet();
    /** Change encrypted wallet passphrase */
    void changePassphrase();
    /** Ask for passphrase to unlock wallet temporarily */
    void unlockWallet();

    /** Show used sending addresses */
    void usedSendingAddresses();
    /** Show used receiving addresses */
    void usedReceivingAddresses();

    /** Re-emit encryption status signal */
    void updateEncryptionStatus();

    /** Show progress dialog e.g. for rescan */
    void showProgress(const QString &title, int nProgress);

    /** User has requested more information about the out of sync state */
    void requestedSyncWarningInfo();

Q_SIGNALS:
    void setPrivacy(bool privacy);
    void transactionClicked();
    void coinsSent();
    /**  Fired when a message should be reported to the user */
    void message(const QString &title, const QString &message,
                 unsigned int style);
    /** Encryption status of wallet changed */
    void encryptionStatusChanged();
    /** HD-Enabled status of wallet changed (only possible during startup) */
    void hdEnabledStatusChanged();
    /** Notify that a new transaction appeared */
    void incomingTransaction(const QString &date, int unit, const Amount amount,
                             const QString &type, const QString &address,
                             const QString &label, const QString &walletName);
    /** Notify that the out of sync warning icon has been pressed */
    void outOfSyncWarningClicked();
};

#endif // BITCOIN_QT_WALLETVIEW_H
